Hmm, weird, Target should contain those food items too. I usually go to Costco though, and I don't think they really sell all the sprinkles/icing stuff. If they do, I never check the isle lol.

look on the baking row where the flour and sugar and such are. If you look for the frosting and decorations for cakes- you will find all the different sprinkles and such. I generally go to a specialty store and buy them in bulk because I buy about 45 different types of sprinkles for all types of holidays and such!!!